Understanding the Anatomy of a Window

Choosing new windows is a significant investment in your home’s beauty, comfort, and energy efficiency. However, the technical terminology—from sash and frame to glazing and grilles—can often feel overwhelming, making it difficult to compare products and understand what truly defines quality.

This guide is designed to demystify the process. We will break down the complete anatomy of a modern window, explaining the crucial role each component plays in performance, durability, and aesthetics. By understanding how these parts work together, you will be empowered to evaluate window construction like an expert and make a confident, informed decision for your home.